Intermittent thread-cutting temple



Jan. 18, 1927.

N. w. BRANNON INTERMITTENT THREAD CUTTING TEMPLE Filed April 7, 1926 2 Shoots-Sheet 1 F1 g. [20 [as lnvenfor.

Nem W. Brannon Jan. 18, 1927. 1,615,188

N. w. BRANN ON INTERMITTENT THREAD CUTTING TEMPLE I Filed April 7. 1926 2 Shoots-Sheet 2 Inventor. Nem W. Brannon Patented Jan. 18, 1927.

UNITED STATES 1,515,188 Para- T oa l-C NEM WILLIAM BRANNON, OF GREEK, SOUTH CAROLINA, ASSICi'NOR '10 DBJAPER COR PORATION, OF HOPEDALE, MASSAGHUSETTS, CGREOR-ATTON OF'MAINEL/ INTE'RMITTENT THREAD-CUTTING TEMPLE.

Application filed April 7, 1926. Serial No. 100,315.

This invention relates to a thread or filling cutting temple for looms of the automatic filling replenishing type.

The object of the invention is to provide such a temple in which the cutting mecha nism shall be operative only immediately after the operation of the filling replenishing mechanism and only until the filling end left by the discharged fillingcarrier is cut thereby.

The object of the invention is therefore to relieve wear and tear on the cutting mechanism, to eliminate the continual operation of the cutting mechanism. and consequently to provide a cutting mechanism of an improved and eflicient intermittently operating tv e.

y i ks is well known to those skilled in the art, the purpose of the cutting mechanism connected with the temple is to cut off close to the selvage the filling ends left after replenishment of the filling. Notwithstanding the fact thatreplenishment of filling only takes place occasionally during the operation of the loom, it is the general practice for the cutting mechanism to be operated at each beat-up of the lay. The present in .vention provides for an intermittent operation of the cutting mechanism under the control of the filling end left by the die charged filling carrier and thus insures that the operation shall take place only at the required time and only for a sufficient period to enable it to perform its function.

These and other objects and features of the invention will appear more fully from the accompanying description and drawings and will be particularly pointed out in the claims.

As the general operation and construction of the automatic filling replenishing loom and of the thread cutting temple are well known and familiar to those skilled in the art. it is only necessary to illustrate and de scribe in detail those parts directly con cerned with the present invention.

The drawings therefore illustrate only so much of a filling replenishing loom of the well-l nown Northrop type as is sufficient to disclose the preferred form of the present invention.

In the drawings:

Fig. 1 is a plan view of a portion of the loom with a temple embodying a preferred .form of the invention and with the parts The loom, a portion of which is illustrated,

comprises the lay 1 having the shuttle box 2 which swings toward and from the breast beam 3. On the breast beam at the replenishing side is mounted the usual magazine or hopper 4-. carrying carriers, one of which atthe time of replenishment is forced into the shuttle'box on the lay discharging therefrom at the same time the exhausted or substantially exhausted filling carrier. 7

The loom is shown as provided with a shuttle feeler 5 of a familiar type which, by usual mechanism unnecessary here to illustrate, is moved rearwardly across the path of the shuttle and then forwardly to its normal position illustrated in 1. This shuttle feeler is shown as provided with the usual filling parting and clamping mechanism 6 which clamps and parts the filling end 7 extending from the cloth to the discharged filling carrier at the time of 'replenishment and carries this clamped filling end forwardand holds it until it is severed by the temple thread cutter.

the supply of fresh filling The temple is also of any suitable familiar type and comprises a head portion 8 having a shank 9 mounted to reciprocate in astand 10 supported from the breast beam of the loom. all in a familiar manner.

The thread or filling cuttingmechanism may be of any suitable type such, for ex ample, as that shown in the patent toDraper et a]. No. 585,465, granted June '29, 1897.

As illustrated, this mechanism is mounted in the temple head 8 through which extends forwardly and rearwardly a slot 11. At the rearward end of the slot a fixed cutter blade 12 is mounted. A movable cutter member 13 is mounted to rock and slide forwardly and rearwardly in the slot 11 and is provided at its rearward end with a pair of hook-shaped cutter blades 14: straddling and cooperating with the fixed blade 12. This movable cutter member is projected rearwardly by the usual spring 15 having an eye at its lower end engaging a laterally proj ecting stud 16 on the cutter member and having an eye at its upper end engaging a laterally projecting stud 17 on the temple head, the extreme upper end of the spring resting against a shoulder 18 on the temple head. The cutter member is moved forwardly to effect the cutting operation by the lay striking against a depending heel 19.

In a preferred form of construction embodying this invention, the required mechanism is mounted on the temple by means of a bracket 20 secured to the temple shank and head and extending laterally therefrom. As illustrated, this bracket is provided with an arm 21 bolted to the side of the shank 9 by means of a bolt 22, while the bracket 20 itself rests upon the top of the temple head. This bracket 20 is bent near its middle portion at 23 to form a bearing and again at its free end at 24 to form a second bearing, in which bearings is journalled or pivoted a shaft 25 constituting a part of a latch. This latch is provided at the temple end with a locking arm 26 and at the opposite end with a hunter arm 27. The locking arm 26 is conveniently formed by bending the shaft 25 downwardly and laterally. The lateral portion of this locking arm 26 is so arranged as to swing down behind a rearwardly facing vertical shoulder 28 formed at the forward end of the movable cutter member 13. When the looking arm is swung to this position, as shown in Fig. 3, it stands between the forward edge shoulder 28 of the movable cutter member and holds the movable cutter member nearly at its extreme forward position and in an inoperative position or a position where it cannot catch and cut the filling. In this position the rear face of the heel 19 is slightly in front of the rear face of the usual depending heel 29 of the temple itself. It will thus be seen that as the lay strikes the heel 19 and moves. it forward until the lay comes into engagement with the heel 29, there will be a slight forward movement of the movable cutter member which will free the locking arm 26 and enable it easily to be swung out from behind the shoulder 28.

The bunter arm 27 is shown as a wire member adjustably clamped by means of a screw 30between a base block 31 and a cap block 32, the former of which is rigidly se cured in any suitable manner to the shaft 25. The shank 33 is extended forwardly beyond the base and cap blocks, bent downwardly and back parallel with itself to form a loop 31 and then back between the base and cap blocks at 35. A counterbalancing weight in the form of washers 36, the number, size and weight of which may be varied as desired, is adjustable toward and from the pivof the head of the temple and the otal axis of the latch shaft 25, or generally radially thereof, by means of a bolt 37 which looks the washers to the loop 34 in any desired position.

The counterbalancing weight is so proportioned and adjusted that the latch as a whole, comprising the hunter arm, shaft 25, locking arm 26, blocks 31 and 32, and the counterbalancing weight itself, will cause the locking arm normally to swing downwardly or into the position shown in 3, while at the same time a very slight pressure against the hunter arm 27 will enable the latch to be rocked in the opposite direction to release the movable cutter member.

The hunter arm 27, when the latch is in normal locking position with the movable cutter member held in a. forward inoperative position, stands vertically about midway between the shuttle feeler and the temple head and parallel with, and preferably slightly forwardly of, the rear face of the temple head, as shown in Fig. 3. In this position the cutting mechanism is inoperative and the movable cutter member is subject only to a very slight movement upon the beat-up of the lay.

hen now filling replenishment takes place. the shuttle feeler 5 is swung rearwardly and the clamping and parting mechanism 6 connected therewith clamps and parts the filling end 7 extending from the fell. to the discharged filling carrier and then swii'igs forwardly carrying the filling end with it. During this movement the filling 7 is carried into the usual notch 38. which positions it in the field of the cutting mechanism. and then forwardly against the hunter arm 27 producing a substantial amount of pressure on the hunter arm. Vhen now the lay beats up, it presses the heel l9 forwardly slightly and at once the pressure exerted by the filling on the hunter arm 27 rocks the latch on its pivotal shaft 25, raising the locking arm 26 out from behind the shoulder 28 of the movable cutter member and releasing the cutter member which. as the lay retracts, is thereupon projected rearwardly by the spring 15. Upon the next beat-up of the lay, the movable cutter member 13 is actuated in the usual manner to cut the filling 7 and any other filling end projecting from the fell, close to the selvage. If the filling end 7 is not cut at the next beat-up, the movable cutter member continues to operate, the latch being held in unlocked position by the continued pressure of the filling 7 on the hunter arm 27, until the filling is cut. As soon as the filling is out, the pressure on the hunter arm 27 is removed and the latch under the influence of the counterweight rocks to swing the locking arm 26 downwardly and as the movable cutter member is carried to its extreme forward position by the lay, the locking arm again drops behind the shoulder 28, placing the movable cutter memher again in inoperative position.

The mounting of the shank of the hunter arm 27 between the blocks 31 and 32 enables the bunter arm 27 to be adjusted accurately in the required position so that the right amount of pressure against the hunter arm will be produced by the filling when carried forwardly by the shuttle feeler.

It will thus be seen that the cutting mechanism normally stands in an inoperative position subject to a minimum amount of wear and is only placed in operative position and only operates to sever the filling when replenishment actually takes place and that it only continues to function and remain in operative position until the filling is severed. Thus it is in operation only to the extent and during the period actually required for the cutting operation.

A mechanism embodying the invention may be readily attached to existing thread cutting temples when constructed in a manner such as herein disclosed because it is only necessary to form the shoulder 28 in the usual movable thread cutter member and attach the necessary latch mechanism by means of a suitable bracket to the temple head and shank.

Havin r thus described the invention, what is claime as new, and .desired to be secured by Letters Patent, is: i

1. In a loom a temple provided with filling cutting means, a latch normally movable into position to hold said cutting means in inoperative position, and a forwardly and rear-wardly movable shuttle feeler provided with filling clamping means acting when it moves to, and remains in, forward position with a clamped filling end to carry said filling against the latch and thereby to move the latch, when the latch is free to move, into, and hold it in, unlocking position and thus release the cutting means to operating position and allow the said means to operate until it cuts the said filling.

2. In a loom a temple provided with filling cutting means including a cutter member n'uwable rearwardly by a spring and forwardly by the lay, a latch normally movable into position to hold said cutter member in a forward inoperative position, and a forwardly and real-wardly movable shuttle feel or provided with filling clamping means acting when it moves to, and remains in, forward position with a clamped filling end to carry said filling against the latch and there by to move the latch, when the latch is free due to a forward movement of the cutter member, into, and hold it in, unlocking osition and thus release the cutter mem er and allow it to be operated until it cuts the said filling.

3. In a loom a temple provided with filling cutting means including a cutter member movable rear-wardly by a spring and forwardly by the lay, a movable shuttle feeler provided with filling clamping means, and a latch in the form of a rock shaft having a hunter arm and a locking arm and balanced to turn normally into a position to cause the locking arm to engage and lock the cutter arm in a forward inoperative position with the hunter arm standing in the path of the filling when carried forwardly by the shuttle feeler, whereby, when the lay beats up and moves the cutter member to extreme forward position and a clamped filling end is carried forwardly and held against the bunter arm by the shuttle feeler, the rock shaft will be rocked to release the cutter member and will be held in released position until the filling is severed by the cutting means.

l. In a loom a temple, a movable cutter member mounted to slide forwardly and rear-wardly in the temple and provided with a rearwardly facing vertical shoulder and a depending heel in the path of the lay, a forwardly and rearwardly movable shuttle feeler provided with filling clamping means, and a latch pivoted on the temple and provided with a locking arm and a bunter arm, the said latch normally rocking into position to cause the locking arm to drop behind the shoulder of the cutter member when in a forward position and thus maintain the cutter member inoperative, and the said bunter arm at all times standing in the path of afilling end when carried forwardly by the shuttle feeler and moved by the said filling, when thus carried forwardly, to rock the locking arm out of engagement with said shoulder upon a forward movement of the cutter member.

5. In a loom, the construction defined in claim 4., together with means for counterbalancing the latch to enable a slight pressure on the hunter arm to rock the latch to unlocking position.

6. In a loom, the construction defined in claim 4:, together with a c-ounterbalancing weight adjustable radially of the latch pivot to control the pressure on the hunter arm re quired to rock the latch to unlocking position.

In testimony whereof, I have signed my name to this specification.

NEM IVILLIAM BRANN ON. 

